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Apparatus for Carrying Off Sewage.

No. 241,938,. Patented May 24,1881.

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,UNITED STATES PATENT Orrrce.

ROBERT OREUZBAUR, or BROOKLYN, n. 1)., AND ADDISON B. cBosBY, or

. NEW YORK, N. Y.

APPARATUS FOR CARRYING OFF SEWAGE.

SPECIFICATION forming part of Letters Patent No. 241,938, dated May 24, 1881.

Application filed June 25, 1880. (No model.)

To all whom it may concern:

Be it known that we, ROBERT CREUZBAUR, of the city of Brooklyn, E. D., and ADDISON BATES CROSBY, of the city of New York, State of New York, have invented a new and useful Im provement in Apparatus for Carryin g Off and Disposing of Sewage, and for cleansing the sewage vaults and outlets on the sea-shore and tide-water coasts and inlets, of which the following is a specification.

The object is attained by storing tide-water during flood-tide in areservoir to which the sewage is not admitted in retaining the water therein until the tide has receded more or less, when, through the action of the falling tide, a passage is opened for the stored water into and through the sewage vault and passages, where by these are thoroughly flushed and cleansed twice per diem.

A simple and effective apparatus for thepurpose is represented in the accompanying drawing, in which- A represents the reservoir, into which the tide-water flows through pipe or passage B B and through upwardly-opening valve 0. The pipe or passage B is laid about on a level of low-water mark, and the bottom of reservoir A is made about from one totwo feet higher, according as more or less head of water is required to overcome the friction of shorter or longer outlets. The valve and its attach ments are best made a little heavier than the water they displace in minimum high tide, so that the water in the reservoir will rise nearly to the level of the outside tide. For instance, were the valve-face area twenty-eight square inches and the valve and attachments weighed fourteen pounds more than the displaced water, the water-level in the reservoir could not reach the level of the outside tide by fourteen inches, as it would take that much head of water to balance the unbalanced weight of the valve and attachments. To prevent such great difierence of level themetal valve 0 is loaded with cork C until theobjeot named is attained, which can also be accomplished by various other means. The valve 0 has usual wings to guide it in pipe B, and at the upper end of its valve-stem 0 it is guided by guide 0 The nut G prevents excessive rising of the valve.

D is small tank, which may be inside of reservoir A, as represented, or outside of the same, and may he of any shape. A round pipe about eighteen inches in diameter will answer. This pipe is constantly open to the tide through pipe B 13*, the water-level in the same being therefore the same as that of the outside tide.

The pipe or channel E leads from the reservoir A into the sewage-vault F, and is closed by upward-opening valve Gr, guided below within pipe E, and connected by its stem 9 to yoke H, pivoted centrally at h. To the other end ofyoke H the rod I is pivoted, being guided atits lower end by an eye-piece fastened across the entrance into pipe B This red I must be lighter than the valve G with its attachments, so that valve G will seat unless overbalanced by the float K. This float K, which is arranged in obstructed tide-water, may be constructed with a central channel, through which rod I can freely slide, the rod serving to guide the float K when rising or falling with the tide, as well as to transmit its weight, when not floating, by nut 1" upon valve G, causing the latter to rise. Until the tide has risen high enough to raise the float K clear off the nut i the valve G remains open, and the water flowing in through pipe B passes through pipe E into the sewervault; F. To prevent such a flow of water into the vault F during the rising tide, such rise in the vault having the eflect of soiling its walls above the reach of the flushing process named, the bottom of tank D may he made low enough to allow float K to float off the nut 13 before the incoming water flows into the sewer-vault F, or before the water-level in the latter rises higher than is desired. This lowering of the bottom of tank D and of nut i also has the effect of retaining the stored water until a greater difference of level is attained, which may be required to overcome the resistance of a. long outlet.

L L L represent outlets of sewer-pipes, which carry the sewage from various localities into the sewage-vault F. The cap I is detachable, 5 so as to facilitate the removal of obstructions.

To close the vault F against the returning tide a valve, N, is applied thereto, which opens toward outletM. The movable cap-piece gives access to valve N in case otits obstruction or derangement.

The float K must be heavy enough when out of water not only to overcome the overweight of valve G and its attachments, but also to overcome the pressure of the water upon the same. Forinstance, when the head of water upon the valve G (the latter having thirty square inches of 'alve-surface) is twenty-eight inches it will require about thirty pounds of upward pull upon rod g to overcome that head and pressure. After the valve has commenced to move, these thirty pounds serve to throw it suddenly wide open, thus causing the most effective flushing of the vault and passages.

Instead of float K, each of the rods g and I may be firmly attached to a displacer, that of the rod g being the heaviest when both are immersed; but when the displacer upon rod I of a cubic-foot displacement, for exampleis left dry its downward effort is increased thereby by about sixty-three pounds, which overcome the overweight of and water-pressure upon the valve G, as aforesaid.

The inlet-pipe B may be fed from the seashore, while the outlet-pipe M may empty into an inland bay, or vice versa, or both may lead to the same body of water, B feeding from close inshore, while M empties farther ofi'shore; or pipe M may join pipe B, so that the latter serves both for inlet and outlet, according to the circumstances of the locality and to the amount of investment to be made. Again, the reservoir A may also be the sewenvault, dispensing with vault F, valve N, and outlet M, pipe E in that case emptying into pipe B B; and various other modifications may be made, which need not be described,

YVe claiming as our invention 1. The method of carrying off and disposing of sewage, consisting in storing water during flood-tide in a reservoir to which the sewage is not admitted, in retaining the water therein until the tide has receded, and in causing the water stored in such reservoir to pass through a sewage "ault or passage, substantially as specified.

2. The method of carrying ofi' and disposing of sewage, consisting in storing water during flood-tide in a reservoir to which sewage is not admitted, in retaining it therein until the tide has receded, and in passing the water stored in such reservoir into and through a sewage vault or passage which is closed to the returning tide, substantially as specified.

3. The combination of a water-reservoir arranged below the level of flood-tide, a supply or inlet pipe for admitting tide-water thereto, an inlet-valve therefor, an outlet-pipe and discharge-valve therefor, and a float arranged in unobstructed tide-water, and serving to automatically control said discharge valve, substantially as specified.

4, The combination of awater-reservoirconnected with tide-water by a pipe or passage controlled by an inwardlyzopening valve, and a sewage vault or passage connected with said reservoir by a channel or pipe provided with a valve automatically controlled by mechanism operated by the rising and falling of the unobstructed tide, substantially as and for the purpose specified.

tOBERT CREUZBAUR. ADDISON 13. CROSBY. Witnesses:

STEPHEN H. BEARDSLEE, FREDK. HAYNES. 

